package main

import "fmt"

func foo(a string, b string) (int, int) {
	fmt.Println(a, b)
	c, d := 100, 200
	return c, d
}

func foo1() (r1 int, r2 int) {
	r1 = 1000
	r2 = 2000
	return
}

func main() {
	i, j := foo("Hello", "world")
	fmt.Println(i, j)
	i, j = foo1()
	fmt.Println(i, j)
}
